African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 785

AJPS Articles

Antimicrobial and antioxidant activities of essential oil and methanol extract of Jasminum sambac from Djibouti

March 2010

  The essential oil was subjected to screening for their possible antioxidant activity by two complementary test systems, namely DPPH free radical scavenging and β-carotene-linoleic acid assays. Butylated hydroxytoluene (BHT) was used as positive control in both test systems. In the DPPH test system, the IC50 value of essential oil and methanol extract were respectively 7.43 and 2.30...

Author(s): Fatouma Abdoul-Latif, , Prosper Edou, François Eba, Nabil Mohamed, Adwa Ali, Samatar Djama, Louis-Clément Obame, Ismael Bassolé and Mamoudou Dicko

Morphometric study of the genus Senna Mill. in South-western Nigeria

March 2010

  Thirteen quantitative characters of the leaves, fruits, seeds and flowers were used in the study of eight Senna Mill. species. The characters include leaflet length, leaflet width, leaflet length/width, Number of leaflets, lamina length, petiole length, pedicel length, petal length, fruit length, fruit width, fruit length/width, seed length and seed width. These characters were measured with the aid...

Author(s): Mike O. Soladoye, Monsurat A. Onakoya, Emmanuel C. Chukwuma, Mubo A. Sonibare

How fertilization affects yam (Dioscorea alata L.) growth and tuber yield across the years

March 2010

  This study deals with the response of Dioscorea alata to NPK-Ca fertilization as affected by differences in weather conditions in two growing seasons. Experiments were conducted in the central Côte d’Ivoire in 2006 and 2007. The experimental design was a randomised complete block design with 4 replications. The dose of 160-10-180-110 kg ha-1 of NPK-Ca, respectively was compared to...

Author(s): V. K. Hgaza, , L. N. Diby, , A. Assa and S. Ake

Degradation of fungal cell walls of phytopathogenic fungi by lytic enzyme of Streptomyces griseus

March 2010

  In vitro tests of interactions between Streptomyces griseus strains and some soil-borne plant pathogens (Fusarium oxysporum, Alternaria alternate, Rhizoctonia solani and Fusarium solani) and 2 isolates of Aspergillus flavus were studied on PDA medium. Strains tested produced a metabolite that inhibited growth of plant pathogenic fungi on PDA medium (dual culture...

Author(s): A. Anitha and M. Rabeeth

S1 selection of local maize landraces for low soil nitrogen tolerance in Zambia

March 2010

  Low soil nitrogen (N) limits maize production in Zambia. S1 selection was used to select for tolerance to low N among ninety-six maize landraces during 2004 - 2007 in Zambia. The landraces were evaluated under low N, drought and optimal conditions; and selfed in a nursery, under optimal conditions. Data on grain yield (GY), number of ears per plant, leaf senescence and anthesis-silking interval were used...

Author(s): Francisco Miti, Pangirayi Tongoona and John Derera

Genetic variability of some agronomic traits in the Iranian Fenugreek landraces under drought stress and non-stress conditions

February 2010

This study was carried out to assess the genetic diversity and heritability of various agronomic traits using twenty fenugreek landraces from Iran. The trial was conducted at Maragheh experiment station in North-west of Iran under rainfed (RF) and irrigated (IR) conditions during 2008 cropping season. Results of combined analysis of variance showed significant differences among landraces for all traits except for...

Author(s): Davoud Sadeghzadeh-Ahari, M. R. Hassandokht, A. K. Kashi, A. Amri and K. H. Alizadeh

Effect of chemical properties of soils on gum elementary compositions from Acacia senegal var. kerensis in Samburu and Marsabit Districts

February 2010

  Geographical Positioning System was used to mark the sites of Acacia senegalvar. kerensis in Marsabit and Samburu districts. Soil and gum samples were collected for analysis of pH, carbon, nitrogen and phosphorus. Soil pH (6.0 - 6.7) varied significantly (p < 0.05) with pH of gum (4.54, 4.50, 4.51 and 4.52) in all the sites. In Merrile, organic carbon in gum (0.15%) was significantly...

Author(s): Joseph K. Lelon, Meshack O. Muga, David W. Odee, Chemuku Wekesa and Beatrice Ndakwe

Virulence of Puccinia triticina on wheat in Iran

February 2010

  Wheat leaf rust is controlled mainly by race-specific resistance. To be effective, breeding wheat for resistance to leaf rust requires knowledge of virulence diversity in local populations of the pathogen. Collections of Puccinia triticina were made from rust-infected wheat leaves on the territory of Khuzestan province (south-west) in Iran during 2008 - 2009. In 2009, up to 20 isolates each of the seven most...

Author(s): S. Elyasi-Gomari

Evaluation of antioxidant activity, quantitative estimation of phenols and flavonoids in different parts of Aegle marmelos

January 2010

  In existing study, we carried out an efficient record of the comparative antioxidant activity in methanolic extract of the selected parts (leaves, root and stem bark) ofAegle marmelos. Total content of phenol and flavonoid was quantitatively estimated in different parts of A. marmelos. The total phenolic contents varied from 9.8367 ± 0.0235 to 1.7281 ± 0.049 mg g-1. Total flavonoid contents...

Author(s): Nadeem Ahmad Siddique, Mohd Mujeeb, Abdul Kalam Najmi and Mohd Akram

Assessment of indigenous knowledge of medicinal plants in Central Zone of Tigray, Northern Ethiopia

January 2010

  This research was initiated to document indigenous knowledge associated with traditional medicinal plants; specifically to identify the plant parts used for medicinal purposes and investigate plant species that are used as medicines for the treatment of human health problems. Twelve traditional healers in the study area were interviewed to gather information on the knowledge and use of medicinal plants used...

Author(s): Gidey Yirga

Phytoextracting cadmium and copper using Mucuna pruriens

December 2009

  Mucuna pruriens var pruriens commonly known as Mucuna, a fast-growing, high-biomass-accumulating plant was investigated to underscore its suitability for metal (Cd and Cu) extraction in an oil spill condition. Process enhancement was made using NPK, UREA and Poultry manure fertilizers. These amendments facilitated metals availability in the order PM>NPK>UREA for Cd extraction and PM>UREA >NPK...

Author(s): E. O. Nwaichi, M. O. Wegwu and E. N. Onyeike

Evaluations of the methanol extract of Ficus exasperata stem bark, leaf and root for phytochemical analysis and antimicrobial activities

December 2009

  The methanol extract of Ficus exasperata (stem bark, leaf and root) was investigated for activity against some human pathogenic organisms.  Phytochemical screening revealed the presence of flavonoids, saponin, tannins, steroids and phlobatannins with no traces of alkaloids and anthraquinones.  The results of in vitro antimicrobial screening of the methanol extract exhibited a...

Author(s): E. A. Adebayo, O. R. Ishola, O. S. Taiwo, O. N. Majolagbe and B. T. Adekeye

Effect of auxins and auxin polar transport inhibitor (TIBA) on somatic embryogenesis in groundnut (Arachis hypogaea L.)

December 2009

  The phytohormone auxin plays an important role in growth, developmental and physiological processes. The effect of auxins, 2,4-D, NAA, IAA, Dicamba and picloram, was tested for somatic embryogenesis in groundnut. Among the different auxins tested 2,4-D favored the best response of somatic embryogenesis with induction of 18.3 somatic embryos per explant that were big, healthy, succulent and green in color....

Author(s): K. Venkatesh, A. Roja Rani, Nirmala Baburao and G. Padmaja

Stem and leaf anatomy of ten Geranium L. species in Iran

November 2009

  An anatomical study on stem and leaf of ten species of Geranium has been performed in order to distinguish tuberous from rhizomatous species. Cross section of stem, number of palisade parenchyma, presence or absence of crystals and shape of epidermal cells in leaf are important characters to distinguish taxa.   Key words: Anatomy, Taxonomy, Geraniaceae, Iran.

Author(s): Fahimeh Salimpour⊃, Ali Mazooji⊃ and Samira Onsori⊃

Antioxidant substances and pesticide in parts of beet organic and conventional manure

November 2009

  Organic agriculture together with sustainable management systems are growing in the world due to concerns about the environment and the health of the populace: being real and exhaustively documented the damages caused by pesticides. The aim of this work was to observe the possible differences in the concentrations of free radical scavengers and substances recently classified as functional, in different beet...

Author(s): Maria Rosecler Miranda Rossetto, Fabio Vianello, Suraya Abdallah da Rochaand Giuseppina Pace Pereira Lima

An improved method for screening Fusarium stalk rot resistance in grain sorghum [Sorghum bicolor (L.) Moench]

November 2009

  Screening for resistance to Fusarium stalk rot under natural infection has been difficult because of irregularities in disease development. The toothpick inoculation technique was introduced to overcome this problem, but it lacked a mechanism to monitor inoculum dose. In this study, we introduce an improved procedure where inoculum doses are monitored and disease incubation periods are optimized....

Author(s): T. Tesso, N. Ochanda, L. Claflin and M.  Tuinstra

Gum arabic yield in different varieties of Acacia senegal (L.) Willd in Kenya

November 2009

  A comparative study was conducted at four locations namely Ngare Ndare, Daaba, Kulamawe and Ntumburi to assess gum arabic yield per tree per picking for different varieties of natural stands Acacia senegal (var. kerensis; var. senegal and var. leiorhachis) in Kenyan drylands for a period of five months. Sample plots measuring 1 hectare were established, one at each study site....

Author(s):   C. Wekesa, P. Makenzi, B. N. Chikamai , J. K. Lelon, A. M. Luvanda and M. Muga

Studying of essential oil variations in leaves of Mentha species

October 2009

  To evaluate the beneficial impacts of different species on mint, some yield characters were investigated. Our objective in this research was the studying of different species effects on essential oil variations. In this respect, the experimental unit had designed by achieved treatment in completely randomized block design with three replicates. The factor including mint species (Mentha longifolia var....

Author(s): Bohloul Abbaszadeh, Sayed Alireza Valadabadi, Hossein Aliabadi Farahani and Hossein Hasanpour Darvishi

Analysis of phenanthrene biosorption to the roots of Cyperus hermaphroditus by microscopy, spectroscopy and photoacoustic techniques

October 2009

  Understanding the process of contaminant accumulation by plants is essential to assessing crop contamination; organic chemicals may be adsorbed to roots and then be taken up, translocated, metabolized, or transpired by plants. The biosorption of phenanthrene by the radical system of Cyperus hermaphroditus,was studied by plants exposed to different concentrations of this pollutant, during 3 and 12...

Author(s): Angélica Guerrero Zúñiga, Alfredo Cruz Orea, Juvencio Galíndez Mayer and Angélica Rodríguez Dorantes

Evaluation of cowpea genotypes for soil moisture stress tolerance under screen house conditions

October 2009

  A potted experiment was conducted in a screen house at the University of Ilorin, Nigeria to evaluate the growth and grain yield responses of 10 genotypes of cowpea to soil moisture stresses. The experiment was designed as a 4 x 10 factorial and laid out in split-plots arrangement, evaluated ten genotypes of cowpea at four soil moisture stress levels with all factorial combinations replicated four times....

Author(s): Y. A. Abayomi and T. O. Abidoye

Growth parameters of Pistacia atlantica Desf under different soil conditions in Iran

September 2009

  Pistacia atlantica Desf. is one of the most important wild species in Zagros forests which is of high economical and environmental value. Therefore the investigation on the vegetative parameters of this native species is necessary. The study was conducted in Shoorab nursery placed in Khoram Abad city, which was located in west of Iran. Experiment was carried out based on randomized plot (block) design...

Author(s): Sedigheh Rezaeyan, Mohammad Reza Pourmajidian, Hamid Jalilvand and Aidin Parsakhoo

The structure and function of trichomes in the leaf of Salvia repens Burch. Ex Benth

September 2009

  The anatomical investigation using scanning and transmission electron microscopy revealed that Salvia repens is characterized by both non-glandular and glandular trichomes. It has been demonstrated that both trichomes appeared to originate from epidermal cells of the leaf, stem and vegetative area through a series of periclinal and anticlinal division. Non-glandular trichomes were composed of...

Author(s):   Buyisile Mayekiso, Zoleka Mhinana and Micheal L. Magwa

Habitat studies for conservation of medicinal orchids of Uttarakhand, Western Himalaya

September 2009

  An extensive sampling was conducted for medicinal orchids in the state of Uttarakhand between the years 2003 to 2005 covering an altitudinal range of 600 – 3600 m. Transects of 1 km length were laid randomly in various habitat types depending upon the geographical coverage of the habitats.  Six medicinal orchid species belonging to four genera were recorded in different habitats. Dactylorhiza...

Author(s): Jeewan Singh Jalal and Gopal Singh Rawat

Activity concentration of radionuclides in plants in the environment of western Ghats, India

September 2009

  A field study on the transfer of primordial radionuclides 238U, 232Th, 40K and fallout radionuclides 210Po in different plant species in tropical forest of western Ghats environment, India, is presented. The Top storey, Short storey, Shrubs and Epiphytic plant species were sampled and concentration of these radionuclides in plant and soil were measured by employing a gamma ray spectrometer...

Author(s): P. K. Manigandan

Diversity and abundance of soil mesofauna and microbial population in South–Western Nigeria

September 2009

  The study was carried out to examine the diversity and abundance of soil mesofauna and microbial population in three (3) Forest Reserves in Southwestern Nigeria (Oluwa, Omo and Akure forest reserves). Soil samples were collected from the study areas and the mesofauna present were isolated and identified. The bacteria count and fungi count were also obtained and identified. The pH was also determined likewise...

Author(s): Adeduntan, Sunday Adeniyi

Litter production, decomposition and physico-chemical properties of soil in 3 developed agroforestry systems of Meghalaya, Northeast India

August 2009

  The present study was conducted under 3 developed agroforestry systems that is, Khasi mandarin (Citrus reticulata), Alder (Alnus nepalensis) and Khasi pine (Pinus kesiya) in the state of Meghalaya, northeast India to study the litter dynamics and physico-chemical properties of soil. The findings of our investigation revealed that the soil texture in 3 systems varied from sandy to loamy sand and water...

Author(s): O. P. Tripathi, H. N. Pandey and R. S. Tripathi

Genetic differentiation of Senna tora (L.) Roxb. and Senna obtusifolia (L.) Irwin & Barneby by using RAPD markers

August 2009

  Genetic relationships were examined among 19 accessions belonging to twoSenna species by using RAPD markers. Within 60 tested primers, 9 primers only produced clear banding patterns that have been expected. An initial test of 60 primers, gave only 9 with consistently clear banding patterns. These 9 primers generated 108 scorable amplified products, of which 72 were polymorphic (66.6%). This degree of...

Author(s): Vivek Tripathi, Sandhya Goswami, Anil Kumar and Palpu Pushpangadan

Improvement of mungbean varieties through induced mutations

August 2009

  Mutations were induced in two mungbean varieties, K-851 and PS-16 using EMS and gamma rays as mutagens. Selection studies were conducted to improve the yield and to generate genetic variability in different quantitative traits viz., fertile branches per plant, pods per plant and seed yield per plant. Mean values in traits increase significantly over the controls and genetic parameters were recorded higher for...

Author(s): Samiullah Khan and Sonu Goyal

Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)

August 2009

  A study was carried out in a greenhouse to determine the effective doses for mutation breeding of roselle during the year 2006/2007. Seedling height was the parameter recorded at 2, 3, 4 and 5 weeks after sowing of M1 seeds of 2 varieties Terengganu and Arab. The results indicated that increasing doses of gamma irradiation from 0 to 1200 Gy in steps of 100 Grey (Gy) caused increasing physiological effect...

Author(s):   S. S. Harding and O. Mohamad

Effect of benzyl amino purine (BAP), coconut milk (CM) and manure applications on leaf senescence and yield in photoperiod sensitive cowpea variety (Kanannado)

July 2009

  The relationship between leaf senescence in cowpea [Vigna unguiculata (L) Walp.] and yield was studied in pot grown population of a local variety, kanannado. Treatments comprising of farm yard manure (single and double application), 200 ppm benzyl amino purine (BAP), 15% coconut milk (CM) and a combination of both manure and the hormones were also applied to determine their effects on senescence and yield....

Author(s): F. B. Mukhtar, M. Mohammed and A. H. Ajeigbe

Agronomic, culinary, and genetic characterization of selected cowpea elite lines using farmers’ and breeder’s knowledge: A case study from Malawi

July 2009

  Cowpea (Vigna unguiculata L.) is an important crop in Malawi. It provides dietary nutrients and income to poor-resource farmers. However production and productivity are below the potential level due to lack of suitable varieties. The objective of the study was to select the productive and diverse cowpea varieties that are acceptable to farmers and consumers using a participatory variety...

Author(s): K. K. Nkongolo, J. Bokosi, M. Malusi, Z. Vokhiwa, and M. Mphepo

Antiviral properties of two Nigerian plants

July 2009

   Ethanolic extracts were prepared from Bambusa vulgaris and Aframomum melegueta. They were analysed for antiviral activities against three human viruses namely: measles, yellow fever and polio viruses by standard laboratory tests. Both extracts showed antiviral activities against one or two viruses. B. vulgaris resulted in inhibition only on measles virus at MIC of 62.5 µg/ml while A. melegueta...

Author(s): O. O. Ojo, J. O. Oluyege and O. Famurewa

Characterization of callus formation in leaf of Euphorbia helioscopia

June 2009

  The callus was induced on Murashige and Skoog’s (MS) medium supplemented with 2,4-dichlo-rophenoxyacetic acid (2,4-D) or 6-Benzylaminopurine (BAP) from the Chinese medicinal herb Euphorbia helioscopia in the family Euphorbiaceae. The highest frequencies of callus induction were observed on MS medium supplemented with 3.0 mg l-1 2,4-D. Callus (yellow, loose, granular) was chosen...

Author(s): Zi-Song Yang, Guang-Deng Chen, Yun-Xiang Li, and Jiao Chen,

Genotype x environment interaction for soybean grain yield and other reproductive characters in the forest and savanna agro-ecologies of South-West Nigeria

June 2009

  Eight soybean varieties were evaluated in 2006 and 2007 at three locations in the forest and savanna agro-ecologies of South west Nigeria for grain yield and other reproductive characters. Data were analyzed using analysis of variance and genotype plus genotype x environment interaction (GGE) biplot analysis. The main effects of year, location, variety and their interactions had significant effects on all the...

Author(s): Akande, S. R., Taiwo, L. B., Adegbite, A. A. and Owolade, O. F.

Antifungal properties of some locally used spices in Nigeria against some rot fungi

June 2009

  Water extracts of three spices (Allium sativum, Afromumum melegueta andZingiber officinale) were tested for antifungal activities against three rot fungi (Aspergillus niger, Aspergillus flavus and Penicillium notatum ) using mycelial growth extension method. The extracts showed varying degrees of antifungal activities against the test fungi. P....

Author(s): Ayodele, S. M., Ilondu, E. M. and Onwubolu, N. C.

Physiological and anatomical comparison between four different apple cultivars under cold-storage conditions

June 2009

     The work was carried out in two successive seasons (2005 and 2006) to investigate the storability of four apple cultivars viz. Golden Delicious, Starking Delicious, Star Cremson and Gala, which were grown under El Jabal El Akhdaer conditions, in Libya. Fruits were harvested and stored at 85-90% relative humidity and 0ºC for 0, 30, 60, 90, 120, 150 and 180 days. The obtained results...

Author(s): Saleh A. M. Ghafir, Suliman O. Gadalla, Benissa N. Murajei and Mohamed Fathi El-Nady

Quantitative genetic parameters in tea (Camellia sinensis (L.) O. Kuntze): I. combining abilities for yield, drought tolerance and quality traits

May 2009

  The combining abilities for yield, drought tolerance and quality related traits inCamellia sinensis were estimated using a 4 x 4 full diallel mating design. There was significant phenotypic variation for the nine traits measured among the progeny and their parents. Generally, parents with good combining ability produced progeny with above average performance for all the traits evaluated. The general...

Author(s): S. M. Kamunya, F. N. Wachira, R. S. Pathak, R. C. Muoki, J. K. Wanyoko, W. K. Ronno and R. K. Sharma

Screening of four common Nigerian weeds for use in phytoremediation of soil contaminated with spent lubricating oil

May 2009

  Phytoremediation is a non destructive and cost effective in situ technology that can be used for the cleanup of contaminated soils. The potential for this technology in the tropics is high due to the prevailing climatic conditions which favour plant growth and stimulates microbial activity. The present study investigated the use of use of 4 common weeds in Nigeria -...

Author(s): Ogbo Erute Magdalene, Avwerosovwe Ufuoma and Odogu Gloria

Stomatal complex types and transpiration rates in some tropical tuber species

May 2009

  Anatomical study of the leaf epidermis in 6 tuber species namely Manihot esculenta Crantz, Cyperus esculentus Linn. Ipomoea batatas Linn., Xanthosoma sagittifolium Schott, Colocasia esculenta Schott and Caladium hortulanum Vent was conducted. Among these species, only C. esculenta has epistomatic leaves with stomata occurring only...

Author(s): Saadu, R. O., Abdulrahaman, A. A. and Oladele, F. A.

Cellulase activity in tomato fruits infected with Penicillium funiculosum Thom.

May 2009

  Within eight days of incubation at room temperature (27oC), tomato (Lycopersicon esculentum Mill.) fruits infected with Penicillium funiculosum Thom.  had deteriorated.  Extracts from the infected fruits exhibited cellulase activity. Uninfected fruits lacked cellulase activity. The enzyme was partially purified by a combination of gel filtration and ion-exchange chromatography. On...

Author(s): Adekunle Odunayo Adejuwon, Adejoke Oluwasola Oni, Adesola Adetutu Ajayi, and Patrick Ojo Olutiola

Screening of low temperature tolerance on cassava genotypes according tostomatal conductances

May 2009

  8 cassava genotypes were evaluated under growth chambers (15/10, 20/15, 25/20 and 32/22°C day/night temperature respectively) and field conditions (Ibadan: 27B ± 5°C and Jos plateau: 18 ± 5°C) from 1993 to 1996. In a growth chamber study, none of the tested genotypes survived after 3 week at 15/10°C, low temperature regimes by 20/15 and 25/20°C had significantly (P < 0.05)...

Author(s): S. O. Akparobi

Evaluation of some hybrid rice varieties in under different sowing times

April 2009

  A field experiment was conducted in the experimental farm of Rice Research and Training Center (RRTC) – Sakha, Kafr- El Sheikh Governorate, and Egypt during rice season in 2008 for physiological evaluation of some hybrid rice varieties in different sowing dates. Four hybrid rice H1, H2, GZ 6522 and GZ 6903 were used. Seeds were sown on six different sowing dates April 10th, April 20th, May 1st, May...

Author(s): Ali Abdalla Basyouni Abou-Khalif

Stomatal features and humidification potentials of Borassus aethiopum, Oreodoxa regia and Cocos nucifera

April 2009

  The atmosphere contains water vapors which humidifies it and later condenses in order to form cloud and subsequently rainfall. The falling of rain is an inevitably necessary thing for plants and animals, which in turn release water back to the atmosphere through evapotranspiration. Larger portion of water is obtained in the atmosphere through plant transpiration. Transpiration rate is relatively regulated by...

Author(s): A. A. Abdulrahaman and F. A. Oladele

Investigation of morphophysiological variation in field bindweed (Convolvulus arvensis L.) populations of Karaj, Varamin, and Damavand in Iran

April 2009

  Diversity in field bindweed (Convolvulus arvensis L.) populations collected from Karaj, Varamin, and Damavad during 2006 (for seed collection) to 2007 (for seed germination and plant growth in green-house) at the Weed Research Department, Iranian Plant Protection Research Institute for identification of morphophysiological variation using multivariate analysis methods. The most important variables were...

Author(s): A. Mehrafarin, F. Meighani, M. A. Baghestani, M. J. Mirhadi and M. R. Labbafi

Application of soil conditioners and man-made erosion control materials to reduce erosion risk on sloping lands

April 2009

  The objective of this study was to evaluate the effect of soil conditioners and man-made erosion control materials on stabilization of sloping hills using rainfall simulator and small flume facilities. Treatments were man-made erosion control materials (from polypropylene fabric) and soil conditioners (gypsum and PAM), these treatments were evaluated on a soil sample with a clay texture taken from a hill...

Author(s): A. Akbarzadeh, R. Taghizadeh Mehrjardi, H.G. Refahi, H. Rouhipour and M. Gorji

Trade offs in grain and leaf yield of cowpea based on timing of leaf harvest

April 2009

  The critical period for cowpea (Vigna unguiculata L. Walpers) leaf harvesting on grain yield of black eyed bean (BEB) cowpea type was determined by timing termination and commencement of leaf harvesting during 2005-2007 rain seasons. Two leaves were harvested from each plant per treatment up to pod formation as compared to no leaf harvesting. The times at which leaf harvesting began and ended had...

Author(s): Matikiti A., Chikwambi Z., Nyakanda C. and Mashingaidze A. B.

Morphological evaluation of olive plants propagated in vitro culture through axillary buds and somatic embryogenesis methods

March 2009

  The morphological fidelity of the olive plants propagated through axillary buds, microplants and somatic embryogenesis, somatic plants was evaluated. Thirty-two morphological traits were used to characterize the tissue culture propagated olive plants. The microplants showed very high phenotypic similarity compared to plants produced by conventional cutting propagation method. The somatic plants exhibited...

Author(s): Leva Annarita

Molecular analysis of type III polyketide synthase (PKS) gene family from Zingiber officinale Rosc

March 2009

  Enzymes of the type III polyketide synthase family is considered to have significant role in biosynthesis of structurally diverse polyketide scaffolds in Zingiber officinale. Genome wide analysis of polyketide synthase gene family in Z. officinale identified partial sequences of six members. Comparative sequence analysis showed that four of them ZoPKS2, 3, 4 and 6 were novel forms as revealed...

Author(s): Radhakrishnan E. K. and E. V. Soniya

Qualitative analysis of tree species in evergreen forests of Kumaun Himalaya, Uttarakhand, India

March 2009

  Current study provides information on the characteristics of tree species in five forests types in the Kumaun Himalaya. On the basis of importance value index, it was observed that Pinus roxburghii is the common tree species at site 1 and 2,Quercus leucotricophora is common at site 3, 4 and 5 is dominated by Quercusfloribunda and Quercus semecarpifolia, respectively....

Author(s): Geeta Kharkwal

Response of potato (Solanum tuberosum L.) to different rates of nitrogen and phosphorus fertilization on vertisols at Debre Berhan, in the central highlands of Ethiopia

February 2009

  A study was conducted to determine the response of potato (Solanum tuberosumL.)  to different rates of nitrogen (N) applied as urea (0, 69, 138 and 207 kg/ha) and phosphorus (P) (0, 20, 40 and 60 kg/ ha) fertilization on Vertisols of Debre Berhan in the highlands of central Ethiopia. Application of 207 kg N/ha delayed days to flowering and physiological maturity by four and nine days,...

Author(s): Zelalem A., Tekalign T. and Nigussie D.

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